<template>
    <div class="container">

        <!-- 头部 -->

        <mt-header fixed title="项目">
            <span @click="goBack" slot="left" v-show="flag">
                <mt-button icon="back">返回</mt-button>
            </span>
        </mt-header>

        <!-- 内容 -->
        <transition>
            <router-view></router-view>
        </transition>

        <!-- 底部 -->
        <nav class="mui-bar mui-bar-tab">
            <router-link class="mui-tab-item1" to="/home">
                <span class="mui-icon mui-icon-home"></span>
                <span class="mui-tab-label">首页</span>
            </router-link>
            <router-link class="mui-tab-item1" to="/member">
                <span class="mui-icon mui-icon-contact"></span>
                <span class="mui-tab-label">会员</span>
            </router-link>
            <router-link class="mui-tab-item1" to="/shopCar">
                <span class="mui-icon mui-icon-extra mui-icon-extra-cart"><span class="mui-badge" id="badge">{{$store.getters.getAllCount}}</span></span>
                <span class="mui-tab-label">购物车</span>
            </router-link>
            <router-link class="mui-tab-item1" to="/search">
                <span class="mui-icon mui-icon-search"></span>
                <span class="mui-tab-label">搜索</span>
            </router-link>
        </nav>


    </div>
</template>

<script>
    export default {
        name: "App",
        data() {
            return {
                flag: false
            }
        },
        created() {
            this.flag = this.$route.path === '/home' ? false : true;
        },
        methods: {
            goBack() {
                this.$router.go(-1);
            }
        },
        watch: {
            '$route.path': function (newVal) {
                if (newVal === '/home') {
                    this.flag = false;
                } else {
                    this.flag = true;
                }
            }
        }
    }
</script>

<style scoped>
    .container {
        padding-top: 100px;
        padding-bottom: 100px;
        overflow-x: hidden;
    }
    .mint-header {
        height: 100px;
        font-size: 35px;
        z-index: 99;
    }
    .mint-header.is-fixed {
        z-index: 99;
    }
    .mui-bar-tab {
        height: 100px;
        padding-bottom: 20px;
    }
    .mui-bar-tab .mui-tab-item1 .mui-icon~.mui-tab-label {
        font-size: 30px;
    }
    .mui-bar-tab .mui-tab-item1 .mui-icon {
        width: 55px;
        height: 55px;
        font-size: 60px;
        margin: 10px;
        line-height: 65px;
    }
    .mui-icon .mui-badge {
        font-size: 20px;
        display: inline;
        padding: 0 10px;
    }

    .v-enter {
        opacity: 0;
        transform: translateX(100%);
        position: absolute;
    }
    .v-leave-to {
        opacity: 0;
        transform: translateX(-100%);
        position: absolute;
    }

    .v-enter-active {
        transition: all 0.5s ease;
    }
    .v-leave-active {
        transition: all 0.5s ease;
    }

    .mui-bar-tab .mui-tab-item1
    {
        display: table-cell;
        overflow: hidden;

        width: 1%;
        height: 50px;

        text-align: center;
        vertical-align: middle;
        white-space: nowrap;
        text-overflow: ellipsis;

        color: #929292;
    }
    .mui-bar-tab .mui-tab-item1.mui-active {
        color: #007aff;
    }
    .mui-icon .mui-badge {
        top: 5px;
        margin-left: -20px;
    }
    >>> .mintui {
        font-size: 30px;
    }
    >>> .mint-button-icon {
        margin-top: -7px;
    }
</style>